Mechanical movement for washing-machines.



G. W. BREWER & J. K. GIBSON. MECHANICAL MOVE-TENT r011 wasanm mcamns.

nruogvno: Hum 130,19.

Patented Sept 22, 1908.

anbudou 'a-To all where it may concern:

Be it known that. we, GEORGE UNITED STATES PATENT OFFICE.

GEORGE W. BREWER AND JOHN K. GIBSON, O1" CLAY (,l NTl'Ill, NEBRASKA.

MECHANICAL MOVEhH-DNT FOR WASHING-MACHINES.

Specification of Letters Patent.

Patented Sept. 22. 1908.,

Application Med January 30, 1808. Serlsl No. 413,133.

W. Bnnwmi and Jon); K. GIBSON, both citizens of the [United States, residing at (lay Center, in

the county of (lay and St ate of Nebraska, have invented ccrtain ncw and useful Inirovcnicnts in Mechanical Movements for Vashing-Machincs, of llltdl the following is a s ecitication.

.his invention relates to that type of mechanical movements whereby a continuous rotary motion is converted into an alternatin I rotary mot-ion.

Vhile the present invention is designed primarily for the oprmtion of washing machines, it will be undcrsiood that it is not restricted to such use.

For a full understanding of the invention,

including its advantages and mode of opera- ,tion, reference is to be had to the following detail description and the accompanying drawings in which,

Figure l is a general erspective view of the invention in its pre erred embodiment, showing fragments of an ordinary ty m of washing machines; Fig. 2 is a vertica sectional view of the main portions of the invention; Fig. 3 is a. cross sectional detail illustrating one s ecific form, and Fig. 4 is a like View of anotier specific form of the bearing portion of the invention.

Throughout the following description and on the several views of the drawings, similar parts are referred to by similar reference characters.

With particular reference to the illustrations, A indicates a fragment of any suitable {grin of washing machine through which exnding vertically is a shaft 10, and to the lower end of which shaft is secured by any suitable means a heater B. As is conimon in this class of machinery the vertical shaft and beater are designed to be given an alternating rotary motion for the purpose of thoroughly stirring the contents of the tub. As hcrcin indicated, the shaft to is in tin.- nature of a hollow c -'lindcr, and at its upper end the same is s itted as at 11. the slit extending centrally therethrough and from the upper end downwardly to a considerable extent. Said shaft 10 is guided for vertical reciprocation hand wheel 14 secured to the horizontal shaft 15 may be employed for operating the vertical shaft. In the construction illustrated the shaft- 15 is rovided with an angularly .disposed straig it portion 1t), prcferabl formed of the same element as the shaft 1. bending the same as indicated. The angu ar portion of said shaft may for convenience be termed a goose neck. The straight portion of the goose neck lies within the slit 11 afore said, and upon rotation of the shaft 15 the goose neck it) will bear against op iosite mar-- gins of the siit 1], one port-ion oi the gooseneck bearing against the slit on (:no side of the axis of the shaft 10 and another portion of the goose neck bearing against that margin of the slit diametrically opposite from the portion before mentioned, causing the shaft 10 to rotate about its axis to a degree from the normal equal to the amount of angularity between the axis of the goose neck and the axis of the. shaft 15. In this connection it may be stated that the angle between the axes of the goose neck and the main shaft 15 may be anything less than 90 degrees, that indicated herein being substantially 45 derces. fore of the shaft 10 in such instance would be substantially 90 degrees. The shaft 15 is journaled for rotation in any suitable bearmgs or uides herein indicated as 17 and 18 the bra dwt for the bearing 18 being extended upwardly and bent to form the guide 12 before mentioned. The shaft 1'.) thus mount-ed susceptible of being given a vertical rec-i rocatory motion, or in other words it may )0 .moved upwardly or downwardly depending upon the bulk of material witlun the vessel being operated upon by"the beater B. It will thus be observed that the beat-er will antomat-ically adjust itself under all conditions of service, in accordance with the amount of work to be done, and that withont'any variation in the mounting of the driving means.

In order to increase the effectiveness of the connection between the goose neck .iud the shaft 10 it has been found essential, to

The entire amount of rotation therein guides 12 and 13, or by any other suitable provide an antifriction means, consisting of a.

I j ball journaled for rotation upon the goose these terms are to be neck but bein held by any suitable means from longitudinal. movement thereon. {As

indicated in the drawings the ball 1!) substantially conforms to the inner surface or the cylindrical shaft 10, and under certain conditions or positions of the goose neck said ball .longitudinal movement in either direction.

As illustrated in Fig. 2, the axis aa of the shaft 10, the axis bb of the goose neck, and the axis cc of the shaft 15 all intersect or coincide in the center of the ball. It will be plainly observed therefore that the shaft 10 )eing effectively guided for all of its movements in the guides 12 and 13 will with the ball constitute a sufficient thrust bearing for the shaft 15 under all conditions of use. The ball 19 therefore takes the place of all thrust bearings for the shaft 15.

As indicated in Fig. 3 the hall 19 is made in two parts secured together by any suitable means and embracing an enlargement- ]6 on the goose n'eck. In Fig; 4 there is illustrated another of the various means which might be employed for journaling the. ball upon the ongitudinally. In this figure the ball 19 is made solid but for its centralhole through which the goose neck passes and ta ped into one side thereof adjacent to said he e is a set screw 20 1projecting into a groove 21 in the goose nec 'liile there is set forth herein the best construction of the invention now known to us, it is to be understood that we are not to be limited in the adaptation thereof except as may be required by the state of the art, and where there have been used the terms vertical and horizontal as applied to certain elements of the invention, it is to be undeistood that poose. neck but preventing movement thereof considered in their rela tive sense only.

Havin thus described the invention, what is Clt1lll10( as new,- is,

1'. In a mechanical inoveu'ient of the class specified, the combination of a driving shaft having an angular-1y disposed portion, a driven shaft disposed at an angleto the aforesaid shaft and guided for longitudinal and rotary motions, the said driven shaft being liOllOWjll'lll slitted, the slit of the said shaft receiving therein the 'angular portion of the drivingslnift, and means mounted upon the said angular portion of the driving shaft to prevent longitudinal movement of the driving shaft.

2. In a mechanical movement of the class specified, the combination of a driving shaft having anangularly disposed port-ion, a' driven shaft disposed at an angle to the driving shaft, guides for supporting said driven shaft for rcci rocation and rotation, the said vertical sliat receiving the angularly disp'osed portion through, and means joui'iialed on the driving of the driviii shaft thereshaft and cooperating with the driven shaft whereby the driving shaft is prevented from longitudinal movement. v

'3. In combination. a hollow vertical heater shaft diametrically sliticd at its upper end,"

guides for supporting said shaftfor rotation and vertical reciprocation, a llOl'lZOllifl aforesaid disposed driving shaft haiin g an aiiguh li' disposed goose neck received in the slit, to. ball mounted for rotationon the goose neck and substantially fitting the interior of said hollowsliaft, and iii'eans to prevent longitudinal movement of the hall on the neck, substantially as specified.

tures in presence of two witnesses.

GEORGE W. BREWER. JOHN K. GIBSON. \Vitnesses:

H. B. CAMPBELL, J. L. CAMPBELL.

In testimony whereof we allix our sigr ai 

